Backdoor.Win32.Zxman Missing Authentication

Backdoor.Win32.Zxman malware has a backdoor running on TCP/2048 that does not require any authentication.

MD5 | e59d2f563516bdcc00be9a6bd0fe9c3e

Discovery / credits: Malvuln - (c) 2021
Original source:
Contact: [email protected]

Threat: Backdoor.Win32.Zxman
Vulnerability: Missing Authentication
Description: Backdoor.Win32.Zxman by Zx-man listens on TCP port 2048 for commands. However, anyone who can reach the infected host can take control as there is no authentication in place. Not much of a self-respecting backdoor. Third party intruders or incident responders who logon will be greeted with a welcome screen and help menu allowing for a wide-range of commands.

Welcome to REMOTE_CONTROL_SYSTEM by Zx-man ([email protected])

Commands List: etc..

Type: PE32
MD5: 6b2a9304d1c7a63365db0f9fd12d39b0
Vuln ID: MVID-2021-0041
Disclosure: 01/20/2021

TELNET x.x.x.x 2048

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